diff --git a/lib/i386/relocator64.S b/lib/i386/relocator64.S index 05627fb90..37a77b3b5 100644 --- a/lib/i386/relocator64.S +++ b/lib/i386/relocator64.S @@ -43,13 +43,13 @@ LOCAL(base): add $(LOCAL(cont0) - LOCAL(base)), RAX jmp *RAX LOCAL(cont0): +#ifndef __x86_64__ lea (LOCAL(cont1) - LOCAL(base)) (RSI, 1), RAX mov RAX, (LOCAL(jump_vector) - LOCAL(base)) (RSI, 1) lea (LOCAL(gdt) - LOCAL(base)) (RSI, 1), RAX mov RAX, (LOCAL(gdt_addr) - LOCAL(base)) (RSI, 1) -#ifndef __x86_64__ /* Disable paging. */ movl %cr0, %eax andl $(~GRUB_MEMORY_CPU_CR0_PAGING_ON), %eax @@ -76,6 +76,12 @@ VARIABLE(grub_relocator64_cr3) movl %cr0, %eax orl $GRUB_MEMORY_CPU_CR0_PAGING_ON, %eax movl %eax, %cr0 + + /* Load GDT. */ + lgdt (LOCAL(gdtdesc) - LOCAL(base)) (RSI, 1) + + /* Update %cs. */ + ljmp *(LOCAL(jump_vector) - LOCAL(base)) (RSI, 1) #else /* mov imm64, %rax */ .byte 0x48 @@ -84,11 +90,6 @@ VARIABLE(grub_relocator64_cr3) .quad 0 movq %rax, %cr3 #endif - /* Load GDT. */ - lgdt (LOCAL(gdtdesc) - LOCAL(base)) (RSI, 1) - - /* Update %cs. */ - ljmp *(LOCAL(jump_vector) - LOCAL(base)) (RSI, 1) LOCAL(cont1): .code64 @@ -143,6 +144,7 @@ LOCAL(jump_addr): VARIABLE(grub_relocator64_rip) .quad 0 +#ifndef __x86_64__ .p2align 4 LOCAL(gdt): /* NULL. */ @@ -185,22 +187,14 @@ LOCAL(gdt): LOCAL(gdtdesc): .word 0x20 LOCAL(gdt_addr): -#ifdef __x86_64__ - /* Filled by the code. */ - .quad 0 -#else /* Filled by the code. */ .long 0 -#endif .p2align 4 LOCAL(jump_vector): /* Jump location. Is filled by the code */ -#ifdef __x86_64__ - .quad 0 -#else .long 0 -#endif .long CODE64_SEGMENT +#endif VARIABLE(grub_relocator64_end)